Green cars – no longer the preserve of environmentalists

zmescience: Advances in science technology and design in the last 10 years have made cars — especially stereotypical gas-guzzlers like 4x4s — into green cars, greener than could have been imagined when they first launched just a few short years ago. Relentless research into improvements for efficiency has transformed the idea of driving a low emission electric or semi-electric (hybrid) vehicle.